228047273 has 2 divisors, whose sum is σ = 228047274. Its totient is φ = 228047272.

The previous prime is 228047263. The next prime is 228047279. The reversal of 228047273 is 372740822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132066064 + 95981209 = 11492^2 + 9797^2 .

It is a cyclic number.

It is not a de Polignac number, because 228047273 - 2⁴ = 228047257 is a prime.

It is not a weakly prime, because it can be changed into another prime (228047279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114023636 + 114023637.

It is an arithmetic number, because the mean of its divisors is an integer number (114023637).

Almost surely, 2^228047273 is an apocalyptic number.

It is an amenable number.

228047273 is a deficient number, since it is larger than the sum of its proper divisors (1).

228047273 is an equidigital number, since it uses as much as digits as its factorization.

228047273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 228047273 is about 15101.2341548630. The cubic root of 228047273 is about 610.9536931752.

The spelling of 228047273 in words is "two hundred twenty-eight million, forty-seven thousand, two hundred seventy-three".